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Intelligent counting and precise magnetic switch: High-resolution large screen display with real-time display of four main data: weight, quantity, time, calories. It uses a magnetic double hall induction switch, which accurately counts the positive and negative direction and effectively avoids miscalculations. Timing fixed number, alarm reminder: It can realise the countdown setting of 1-60 minutes and the setting of 1-300 rounds. After countdown or countdown, a \